TY  - BOOK
AU  - Thorne,David Wynne
AU  - Thorne,Marlowe D.
TI  - Soil, water, and crop production
SN  - 0870552813 :
AV  - S589.7 .S64
U1  - 630/.27/45 
PY  - 1979///
CY  - Westport, Conn.
PB  - AVI Pub. Co.
KW  - Agricultural ecology
KW  - Agriculture
KW  - Cropping systems
KW  - Agricultural geography
ER  -